Wagon running-gear



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J. H. BAKER.v WAGON RUNNING GEAR.

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PATENT Ormea.

JAMES H. BAKER, OF ALLEGHENY, PENNSYLVANIA.

WAGON RUNNING-GEAR.

SPECIFICATION forming part of Letters Patent No. 509,354, dated November28, 1893.

` Application filed November 4, 1892. Serial No. 450,978. (No model.)

To all whom it may concern:

` Be it known that I, JAMES H. BAKER, acitizen of the United States,residing at Allegheny, in the county of Allegheny and State ofPennsylvania, have invented or discovered new and useful Improvements inWagon- Gear, of which the following is a specification. In theaccompanying drawings which make part of this specication, Figure l, isa plan of the blank from which the axle is made. Fig. 2, is a plan ofthe axle after it has passed through eccentric rolls. Fig. 3, is a frontelevation of axle, bolster, spring bolster, center, spring bolster,braces and guide. Figs. 3a, 3b, 30, 3d, 3e, 3g-and 3h are sections onvarious lines of Fig. 3. Fig. 4, is a vertical section through springbolster, braces and guide. Fig. 5, is a perspective of center piece.Fig. 6, isa plan of Fig. 3. Fig. 7, is aperspective of rear end ofhound. Fig. 8, is a central longitudinal section of axle arm. Fig. 9, isa section of plate from which bolster is made. Fig. lO, is a plan ofspring cap in bolster. Fig. l1, shows inward bend of spring.

l 'My invention relates to improvements in wagon gears, such as areusually called lumber or farm wagons. Such Wagons are nearly all madeofwood end then ironed with plates, straps, bolts, dto., which haverendered them expensive and liable to repairs.

The object of myinventionis to make them of metal, and decrease thenumber of parts and eliminate bolts and braces and to generally improvetheir quality as will hereinafter more vfully appear.

I take for illustration a hind gear, though what I shall describe willapply as fully to a front gear. When I name the bolster in thisdescription, I mean that the same shall apply to what is called the sandboard in the front gear. The piece which has projections reachingdownward and resting on the springs, and therefore which comes betweenthe bolster proper and the load, I will call a spring bolster. To makethe axle I take a plate 1 of proper width and of even thickness seen inFig. 1, and heating it I passit between eccentric rolls, and reduce itto about the section shown Yat Fig. 2. It may not always be necessary toreduce the part 2. The main thing is to get it heavy at 3, and lighterfrom there toward the center. If a blank is wanted wider between thearms, then the thin parte can be made by rolling sidewise. This is forthe purpose of placing the extra weight only where needed. y I thenpress it into the form of Fig. 3a. At the point where the spring 5 is torest on the aXle,I form the 'seat or cup 6 to contain the spring. apiece of preferably similar section, `and make the upper half ofthe arm7 and having pressed the arm part into corresponding shape to meet theaxle part, and havinga projection 8, I weld the arm portion to thecorresponding portion of. the axle, having first trimmed the edges fromthe shoulder out to give the requisite taper. I prefer to place a shortround section 9 in the semi-tubular parts at the shonlderof the arms 10,as this makes the welding easier and the arm stronger at the criticalpoint, and closes one end of what is to be the oil chamber l1. A similarpiece may be welded in the end l2, of the arm, to make'the threaded partor the end welded without it and avnnt inserted. The rest of the arm canbe welded along the sides. For some work the thickness of the plate, tomake the axle would not be reduced from the shoulders outward but madesolid by having the piece 9 extend to the end. For the Very best resultsthe changing form of section should be about as Fig. 2. The specialfeatures of this axle are its lightness between the arms, and strengthat the shoulder,and the projection 8 carried up to engage with thebolster 12, so that any inclination of the arm to bend behind theshoulder, will be checked by the vupward projections being held fromgiving in toward each other by endwise pressure of the bolster. As theend pressure of these projections cannot Well be brought directlyagainst the ends of the bolster I secure them by riveting.

To make the bolster I now take a channel section with preferablyreinforced edges seen at Fig. 3b. This is made by'first rolling a plate12, and then pressing it into shape Fig. 3f for the bolster. Thisreinforcing of the edges of the flanges of the channel renders it muchstronger and therefore makes it possible to use a lighter bolster to agiven strength. The same is true of the spring bolster described ICOstrength from a given weight. At the shoulders of the arms, where thedepth is limited to a reasonable diameter of the arm I mass the metaland increase the depth rapidly from that point inwardly.

I claim the parts in detail and in combination as follows:

l. In a wagon gear, a metallic axle and a separate overlying metallicbolster; said axle and said bolster being connected by projections fromthe shoulders of the arms of the axle, said projections being integralwith said arms, substantially as described.

2. In a Wagon gear, a metallic axle and a separate overlying metallicbolster; said axle and said bolster being connected by projections fromthe shoulders of the armsof said axle, said projection being integralwith said arm and also by a metallic piece intermediate between saidarms, substantially as described.

3. In a wagon gear a metallic axle having seats for springs formedintegral therewith by the sides of the axle at these points,substantially as described.

4. In a wagon gear, a metallic axle having seats integral therewith forsprings and guides with openings in them for the spring bolster guidesto work in, substantiallyas described.

5. In a wagon gear, the combination of a metallic bolster, a metallicaxle having a seat to contain one end of a spiral spring, said seatlhaving an upward projection to receive the Y end of a spiral spring,substantially as described.

6. In a wagon gear, the combination of a channel axle and a channelbolster, said axle and bolster being connected by projections from theshoulders of the arms of said axle, substantially as described.

7. In a wagon gear a metallic bolster chan-V nel shaped in sectionhaving the lower edges of the channels reinforced in section,substantially as described.

8. In a wagon gear a metallic cap to receive the upper part of a coilspring and having an opening in its edge to insert the spring,substantially as described.

9. I n a wagon gear a channel shaped metallic bolster having openingsdown through the top of the bolster to admit the downward projectionsfrom the spring" bearing bolster,

f substantially as described.

10. In a wagon gear a spring bearing bolster of channel-section havingguides extending from each side downward and united to a guide rodarranged to slide vertically in guides attached to the axle,substantially as described.

l1. In a wagon gear, the combination of a metallic axle; a separateoverlyingmetallic bolster, and hounds connected to said axle andbolster, the vertical sections of said hounds being of sufficient depthat their axle ends to extend substantially from the top of the bolster vto the bottom of the axle, substantially as described.

12. In a wagon gear 'a metallic axle, a metallic bolster, and metallichounds riveted thereto, the ends of the hounds being suitably shaped, atthat point into one hall' of the coil spring casing, substantially asdescribed.

13. In a wagon gear a metallic axle and a metallic bolster secured in-the centerlby a metal center piece secured thereto, the, latter havingan opening for the reach and having anges on the edges set at rightangles wlth the line of the axle, substantially as described.

14. A metallic axle; a separate over lying metallic bolster and avertical plate, having flanges turned at'right angles to the line ofsaid axle and bolster and connecting said axle and bolster at a pointintermediate between the shoulders of the arms, substantially asdescribed. l

15. A metallic axle; a separate overlying metallic bolster, and avertical plate at apoint JAMES II. BAKER.

Witnesses:

WILLIAM BEAI., WILLIAM L. PIERCE.

